This year revaluation option is introduced for cbse plus 2 students, instead of asking revaluation for the whole paper they can submit revaluation request for particular questions. CBSE Chennai region official sudharson rav said this to reporters, he further added following message

Scheme of applying for retotalling is already available and this year onwards facility of applying for revaluation is to be introduced. As per this they don’t need to apply for whole answer paper revaluation if they found any questions with improper valuation. They may just ask for that particular question.

Fees 300rs:

Students can represent the question which need to revaluate and fees is 300rs. Students can apply for it through board address http://www.cbse.nic.in/, after this revaluation team in delhi will analyze your paper and new results will be declared online in previously mentioned link.

Results of all regions are available now, cbse announced results in two phases. Students whose mark is changed after revaluation will get fresh statement.

Whole process is made online so students can navigate to cbse online portal for entire details.

About CBSE: it is national level board for school education which working under Indian government and having the headquarter in new delhi. Board was set up in the year 6 and it has 10 regional offices across india.